surreptitious /sur-əp-tishˈəs/

1. Done by stealth or fraud
2. Stealthy

• stand to win
• stand treat
• stand trial
• stand up
• stand-up
• stand up for
• stand upon
• stand upon one's watch
• stand upon points
• stand upon terms
• stand-ups
• stand up to
• stand well
• stand with
• stane
• stang
• stanged
• stanging
• stangs
• stanhope
• Stanhope press
• stanhopes
• staniel
• staniels
• Stanislavski method